/Engine/Source/Editor/KismetCompiler/Public/KismetCompiler.h
Removes the properties and functions from a class, so that new ones can be created in its place
virtual void CleanAndSanitizeClass ( [UBlueprintGeneratedClass](API\Runtime\Engine\Engine\UBlueprintGeneratedClass) * ClassToClean, [UObject](API\Runtime\CoreUObject\UObject\UObject) *& OldCDO )